17) A typical cell may use up to how much energy to maintain the concentration gradients for Na+, and K+?
A) 25% b) 33% c) 75% d) 99%
18) If an organ oxidized two grams of glucose to carbon dioxide, how many Calories of energy could be generated?
A) 2
B) 4
C) 8
D) 4,000
E) 18,000
19) Ultimately we as humans are all ______ organisms.
a) Autotrophic b) Heterotrophic c) Allosteric d) Autocatalytic
20) True/False: Standard Free Energy (?G'o) for a chemical reaction is determined by putting the reactant(s) and product(s) into solution at 1 M concentrations and evaluating the equilibrium constant (assume 25 C).
a) True b) False
21) The equilibrium constant (Keq) for this reaction is what? At equilibrium the react and product concentrations were: [A .25M] ? [B 1.75 M]
A) Keq= 0.25/1.75= 0.14
B) Keq= 1.75/0.25= 7
C) Cannot determine Keq based in information provided
22) Determine which of the following could cause a reaction with a positive ?G'o to become more favorable with respect to making product.
A) Remove product when produced B) Increase the substrate concentration
C) Alter the temperature of the reaction D) All of the above